RFR: 8293672: Update freetype md file [v2]

[Damon Nguyen]

> Update the freetype md file with the newly generated md file from attribution tool. The new format slightly differs from the previous version when separating different licenses. Added logic for combining of copyright lines and support for other licenses such as MIT.

Damon Nguyen has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into 8293672/updateFreeTypeMd
 - Update md file

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10561/files
  - new: https://git.openjdk.org/jdk/pull/10561/files/2bb32afc..16c4ed07

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10561&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10561&range=00-01

  Stats: 208500 lines in 3586 files changed: 104542 ins; 82118 del; 21840 mod
  Patch: https://git.openjdk.org/jdk/pull/10561.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10561/head:pull/10561

PR: https://git.openjdk.org/jdk/pull/10561